The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 29, 1985
Filed:
Apr. 06, 1983
Takashi Ueno, Yokosuka, JP;
Sadao Takase, Yokohama, JP;
Nissan Motor Company, Limited, Yokohama, JP;
Abstract
A fuel injection control system for a direct injection type internal combustion engine having a plurality of fuel injection valves installed in respective combustion chambers. The fuel injection control system comprises: (a) a means for calculating start timing with respect to each engine stroke and duration of fuel injection through the respective fuel injection valves according to the engine operating condition; (b) a means for producing a plurality of pulse signals each having a period corresponding to an angle of a crankshaft rotation including at least two engine strokes; and (c) a injection signal means provided for each engine cylinder for producing a fuel injection signal which rises at the time of the calculated start timing and has a duration corresponding to the calculated duration of fuel injection, the fuel injection signal being sent to the corresponding fuel injection valve at any time during the extended time interval from at least the beginning of the suction stroke to the end of the compression stroke of the engine cylinder.